I'm having trouble breathing through my nose and it feels like I'm not getting enough air, so I have to breathe through my mouth instead. Its especially tough when I'm sleeping, and now my chest is starting to hurt since Im always using my mouth to breathe. This reminds me of when I was young; I used to jump rope a lot, like 2000 times, and a doctor once said that caused a breathing issue for me back then. I feel like I'm going through the same thing again. What do you think might be the issue this time?